code: def scheduler_monitor(self):
      check_interval = self.config.get("jobs", {}).get(
          "check_interval", 30
      )
  
      while True:
          logger.debug("Scheduler check timetable")
          try:
              self.check_timetable()
          except (SystemExit, KeyboardInterrupt):
              raise
          except Exception as e:
              logger.error(e)
  
          # different instances should start in not the same time
  
          time.sleep(check_interval + random.randint(1, 10))
  
file_path: mindsdb/mindsdb/interfaces/jobs/scheduler.py
imports: import datetime
  import queue
  import random
  import threading
  import time
  from mindsdb.interfaces.jobs.jobs_controller import JobsExecutor
  from mindsdb.interfaces.storage import db
  from mindsdb.utilities import log
  from mindsdb.utilities.config import Config
label_desc: Use image node_id 4 for calling the Scheduler obj's underlying member method code with example usage: obj.scheduler_monitor() without return types